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DERIVATIVE FINANCIAL INSTRUMENTS (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Derivatives, Fair Value [Line Items]    
Derivative, notional amount $ 275,774 $ 275,774
2.868% Interest Rate Swap Maturing October 8, 2022 | Cash Flow Hedging    
Derivatives, Fair Value [Line Items]    
Derivative liability, notional amount $ 250,000 250,000
Derivative, fixed interest rate 2.868%  
Derivative liability, fair value, gross liability $ (6,627) (562)
3.300% Interest Rate Swap Maturing January 30, 2021 | Cash Flow Hedging    
Derivatives, Fair Value [Line Items]    
Derivative liability, notional amount $ 25,774 25,774
Derivative, fixed interest rate 3.30%  
Derivative liability, fair value, gross liability $ (120) $ (94)